Wing of female of Mythicomyia rileyi from Fig. 45.27 on pg. 594 of McAlpine (1981) Key to Families - Adults,
Manual of Nearctic Diptera
, Ottawa, p.89-124, (1981)
[1].

Description of the abbreviations contributed by Aaron Schusteff:

Wing of female of Empidideicus humeralis, modified from Fig. 45.26 on pg. 594 of McAlpine (1981) Key to Families - Adults,
Manual of Nearctic Diptera
, Ottawa, p.89-124, (1981)
[1].

Wing venation of Mythicomyia. The image was drawn by Giancarlodessi.

Wing venation of Epidideicus. The image was drawn by Giancarlodessi.

Wing venation of Cyrtosia. The image was drawn by Giancarlodessi.